For me personally, I think there is little value is creating standards around whether or not one line or two is used for declaring a variable ( does either make you a better developer? ), far more important to me is if the variables are named correctly, that they are readable, easy to understand and express their intent without me having to think too much about it.Is this really an issue anymore given that you can just fold up the vars section?- consistent variable definitions (we don't like one line per variable definition, rather they should have more than one on a line to make the lengh of a method less).I never use code folding in the IDE. The point of some of the standards is consistency across the whole product for all developers, including third party developers.
Consider
total : Decimal[12,2];
vs
totalAmountOwing : Decimal[12,2];
Possibly if a method has so many variables that it makes the method too long, then perhaps that method is doing too much and is a candidate for refactoring.